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US 11,743,921 B2Granted
Method for downlink control channel design
AssigneeHuawei Technologies Co., Ltd.
InventorsZhengwei Gong, Amine Maaref
Life of this patent
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Abstract
Embodiments of this disclosure improve the reliability of blind decoding when beamforming is used by having a user equipment (UE) receive a single downlink control information (DCI) message with different transmission and/or reception parameters. In some embodiments, a UE receives more than one set of configuration parameters, where any two sets of configuration parameters out of the more than one set of configuration parameters have at least one different parameter. The UE may receive two sets of configuration parameters each having a different transmission modes, but the same search space type. Additional examples are also provided.
Claims20
A method comprising:
- transmitting, by a base station to a user equipment (UE), a single radio resource control (RRC) message, wherein the single RRC message includes first configuration parameters and second configuration parameters, and wherein the single RRC message comprises a linkage between the first configuration parameters and the second configuration parameters;
- transmitting, by the base station to the UE, a first downlink control information (DCI) in a first physical downlink control channel (PDCCH) search space in accordance with the first configuration parameters;
- and
- transmitting, by the base station to the UE, a second DCI in a second PDCCH search space in accordance with the second configuration parameters, the first PDCCH search space and the second PDCCH search space being associated with different control resource sets, wherein the first DCI and the second DCI are associated with a same UE identifier (ID), and wherein the first PDCCH search space and the second PDCCH search space are different UE-specific search spaces.
1 more element
A method comprising:
- receiving, by a user equipment (UE) from a base station, a single radio resource control (RRC) message, wherein the single RRC message includes first configuration parameters and second configuration parameters, and wherein the single RRC message comprises a linkage between the first configuration parameters and the second configuration parameters;
- receiving, by the UE from the base station, a first downlink control information (DCI) in a first physical downlink control channel (PDCCH) search space in accordance with the first configuration parameters;
- and
- receiving, by the UE from the base station, a second DCI in a second PDCCH search space in accordance with the second configuration parameters, the first PDCCH search space and the second PDCCH search space being associated with different control resource sets, wherein the first DCI and the second DCI are associated with a same UE identifier (ID), and wherein the first PDCCH search space and the second PDCCH search space are different UE-specific search spaces.
1 more element
An apparatus comprising:
- at least one processor;
- a non-transitory computer-readable storage medium coupled with the at least one processor, the non-transitory computer-readable storage medium storing instructions that, when executed by the at least one processor, cause the apparatus to perform operations including:
- transmitting, to a user equipment (UE), a single radio resource control (RRC) message, wherein the single RRC message includes first configuration parameters and second configuration parameters, and wherein the single RRC message comprises a linkage between the first configuration parameters and the second configuration parameters;
- transmitting, to the UE, a first downlink control information (DCI) in a first physical downlink control channel (PDCCH) search space in accordance with the first configuration parameters;
- and
- transmitting, to the UE, a second DCI in a second PDCCH search space in accordance with the second configuration parameters, the first PDCCH search space and the second PDCCH search space being associated with different control resource sets, wherein the first DCI and the second DCI are associated with a same UE identifier (ID), and wherein the first PDCCH search space and the second PDCCH search space are different UE-specific search spaces.
3 more elements
Dependencies are inferred from the claim text.